Self drilling screws, various special screws, bolts, cold formed precision parts, various tools and molds for cold formed fasteners.

Types And Features Of Surface Treatment

TYPES AND FEATURES OF SURFACE TREATMENT

SURFACE TREATMENT APPEARANCE COMPOSITION AND FEATURES
ELECTRO ZINC PLATING Bright chromate conversion coatings Bluish silver white White and bright. Beautiful.
Widespread for construction but corrosion resistance is not high.
Colored chromate conversion coatings Interference color or rainbow color Gold and bright.
Corrosion resistance is better than that of bright chromate
conversion coatings, but color shading appears according to composition ratio of
CHROMIUM (IC) CHROMATE.
Black chromate conversion coatings Black Silver is used for black oxide solution.
Corrosion resistance is slightly better than colored chromate conversion coatings.
Green chromate conversion coatings Olive drab Green film with brightness.
Corrosion resistance is better than any other chromate conversion coatings.
Trivalent unichrome coatings Blue Coating developed as a substitute for bright chromate conversion coatings.
Corrosion resistance is better than bright chromate conversion coatings.
It is said that this plating doesn’t conform to standards of
light electrical appliances and automobile manufacturers.
Trivalent bright chromate conversion coatings White Substitute for conventional bright chromate conversion coatings and
colored chromate conversion coatings, free from hexavalent chromium
which is thought to be harmful to human health.
Corrosion resistance is similar to that of colored chromate conversion coatings.
Trivalent black chromate conversion coatings Black Substitute for conventional bright chromate conversion coatings and
colored chromate conversion coatings, free from hexavalent chromium
which is thought to be harmful to human health.
Corrosion resistance is similar to that of colored chromate conversion coatings.
ALLOY PLATING ZIN-LOY plating + ARON MIGHTY coatings Stainless steel color ARON MIGHTY coatings(K coat) on Zinc-nickel alloy electroplating(ZIN-LOY).
It is called STAIN(LESS) COAT from its appearance and corrosion resistance
similar to stainless steel.
OTHERS RUSPERT Silver, gray etc. Corrosion resistant film of special ceramic material on zinc electroplating layer, which improves total corrosion resistance.
DISGO (LAFRE D) Silver etc. Hydrogen embrittlement free thin film surface treatment.
Protecting zinc basecoat with laminated squamous aluminium topcoat.
Chromium free and high grade corrosion resistance.
DACROTIZED Gray Combined film constituted with metallic zinc flakes and
hexavalent chromium compounds by baking coating.
Free from hydrogen embrittlement.
GEOMET Metallic silver Film that metallic flakes align in multiple layers and
are connected through the use of a special inorganic binder.
Chromium free, superior in SST, cyclic test, heat resistance and corrosion resistance.
Passivation treatment Stainless steel color Forming passivation film on the surface of stainless steel by nitric acid treatment,
recover the corrosion resistance of the material itself with brightness.
Beautiful appearance.
Tin plating Silver Tin plating to the surface of stainless steel undercoated with copper or nickel.
Beautiful appearance and high corrosion resistance but expensive.
Commonly applied to SUS 410.
Bronze plating Bronze Color oxidation on stainless steel by heating, controlling the tints
which are related to the differences in temperature.
The differences between each temper are subtle so
please pay attention to color calibration.

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